[apple/icu.git] / icuSources / common / unicode / idna.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*   Copyright (C) 2010-2012, International Business Machines
*   Corporation and others.  All Rights Reserved.
*******************************************************************************
*   file name:  idna.h
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2010mar05
*   created by: Markus W. Scherer
*/

#ifndef __IDNA_H__
#define __IDNA_H__

/**
 * \file
 * \brief C++ API: Internationalizing Domain Names in Applications (IDNA)
 */

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

#if !UCONFIG_NO_IDNA

#include "unicode/bytestream.h"
#include "unicode/stringpiece.h"
#include "unicode/uidna.h"
#include "unicode/unistr.h"

U_NAMESPACE_BEGIN

class IDNAInfo;

/**
 * Abstract base class for IDNA processing.
 * See http://www.unicode.org/reports/tr46/
 * and http://www.ietf.org/rfc/rfc3490.txt
 *
 * The IDNA class is not intended for public subclassing.
 *
 * This C++ API currently only implements UTS #46.
 * The uidna.h C API implements both UTS #46 (functions using UIDNA service object)
 * and IDNA2003 (functions that do not use a service object).
 * @stable ICU 4.6
 */
class U_COMMON_API IDNA : public UObject {
public:
    /**
     * Destructor.
     * @stable ICU 4.6
     */
    ~IDNA();

    /**
     * Returns an IDNA instance which implements UTS #46.
     * Returns an unmodifiable instance, owned by the caller.
     * Cache it for multiple operations, and delete it when done.
     * The instance is thread-safe, that is, it can be used concurrently.
     *
     * UTS #46 defines Unicode IDNA Compatibility Processing,
     * updated to the latest version of Unicode and compatible with both
     * IDNA2003 and IDNA2008.
     *
     * The worker functions use transitional processing, including deviation mappings,
     * unless UIDNA_NONTRANSITIONAL_TO_ASCII or UIDNA_NONTRANSITIONAL_TO_UNICODE
     * is used in which case the deviation characters are passed through without change.
     *
     * Disallowed characters are mapped to U+FFFD.
     *
     * For available options see the uidna.h header.
     * Operations with the UTS #46 instance do not support the
     * UIDNA_ALLOW_UNASSIGNED option.
     *
     * By default, the UTS #46 implementation allows all ASCII characters (as valid or mapped).
     * When the UIDNA_USE_STD3_RULES option is used, ASCII characters other than
     * letters, digits, hyphen (LDH) and dot/full stop are disallowed and mapped to U+FFFD.
     *
     * @param options Bit set to modify the processing and error checking.
     *                See option bit set values in uidna.h.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return the UTS #46 IDNA instance, if successful
     * @stable ICU 4.6
     */
    static IDNA *
    createUTS46Instance(uint32_t options, UErrorCode &errorCode);

    /**
     * Converts a single domain name label into its ASCII form for DNS lookup.
     * If any processing step fails, then info.hasErrors() will be TRUE and
     * the result might not be an ASCII string.
     * The label might be modified according to the types of errors.
     * Labels with severe errors will be left in (or turned into) their Unicode form.
     *
     * The UErrorCode indicates an error only in exceptional cases,
     * such as a U_MEMORY_ALLOCATION_ERROR.
     *
     * @param label Input domain name label
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    labelToASCII(const UnicodeString &label, UnicodeString &dest,
                 IDNAInfo &info, UErrorCode &errorCode) const = 0;

    /**
     * Converts a single domain name label into its Unicode form for human-readable display.
     * If any processing step fails, then info.hasErrors() will be TRUE.
     * The label might be modified according to the types of errors.
     *
     * The UErrorCode indicates an error only in exceptional cases,
     * such as a U_MEMORY_ALLOCATION_ERROR.
     *
     * @param label Input domain name label
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    labelToUnicode(const UnicodeString &label, UnicodeString &dest,
                   IDNAInfo &info, UErrorCode &errorCode) const = 0;

    /**
     * Converts a whole domain name into its ASCII form for DNS lookup.
     * If any processing step fails, then info.hasErrors() will be TRUE and
     * the result might not be an ASCII string.
     * The domain name might be modified according to the types of errors.
     * Labels with severe errors will be left in (or turned into) their Unicode form.
     *
     * The UErrorCode indicates an error only in exceptional cases,
     * such as a U_MEMORY_ALLOCATION_ERROR.
     *
     * @param name Input domain name
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    nameToASCII(const UnicodeString &name, UnicodeString &dest,
                IDNAInfo &info, UErrorCode &errorCode) const = 0;

    /**
     * Converts a whole domain name into its Unicode form for human-readable display.
     * If any processing step fails, then info.hasErrors() will be TRUE.
     * The domain name might be modified according to the types of errors.
     *
     * The UErrorCode indicates an error only in exceptional cases,
     * such as a U_MEMORY_ALLOCATION_ERROR.
     *
     * @param name Input domain name
     * @param dest Destination string object
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual UnicodeString &
    nameToUnicode(const UnicodeString &name, UnicodeString &dest,
                  IDNAInfo &info, UErrorCode &errorCode) const = 0;

    // UTF-8 versions of the processing methods ---------------------------- ***

    /**
     * Converts a single domain name label into its ASCII form for DNS lookup.
     * UTF-8 version of labelToASCII(), same behavior.
     *
     * @param label Input domain name label
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual void
    labelToASCII_UTF8(StringPiece label, ByteSink &dest,
                      IDNAInfo &info, UErrorCode &errorCode) const;

    /**
     * Converts a single domain name label into its Unicode form for human-readable display.
     * UTF-8 version of labelToUnicode(), same behavior.
     *
     * @param label Input domain name label
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual void
    labelToUnicodeUTF8(StringPiece label, ByteSink &dest,
                       IDNAInfo &info, UErrorCode &errorCode) const;

    /**
     * Converts a whole domain name into its ASCII form for DNS lookup.
     * UTF-8 version of nameToASCII(), same behavior.
     *
     * @param name Input domain name
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual void
    nameToASCII_UTF8(StringPiece name, ByteSink &dest,
                     IDNAInfo &info, UErrorCode &errorCode) const;

    /**
     * Converts a whole domain name into its Unicode form for human-readable display.
     * UTF-8 version of nameToUnicode(), same behavior.
     *
     * @param name Input domain name
     * @param dest Destination byte sink; Flush()ed if successful
     * @param info Output container of IDNA processing details.
     * @param errorCode Standard ICU error code. Its input value must
     *                  pass the U_SUCCESS() test, or else the function returns
     *                  immediately. Check for U_FAILURE() on output or use with
     *                  function chaining. (See User Guide for details.)
     * @return dest
     * @stable ICU 4.6
     */
    virtual void
    nameToUnicodeUTF8(StringPiece name, ByteSink &dest,
                      IDNAInfo &info, UErrorCode &errorCode) const;
};

class UTS46;

/**
 * Output container for IDNA processing errors.
 * The IDNAInfo class is not suitable for subclassing.
 * @stable ICU 4.6
 */
class U_COMMON_API IDNAInfo : public UMemory {
public:
    /**
     * Constructor for stack allocation.
     * @stable ICU 4.6
     */
    IDNAInfo() : errors(0), labelErrors(0), isTransDiff(FALSE), isBiDi(FALSE), isOkBiDi(TRUE) {}
    /**
     * Were there IDNA processing errors?
     * @return TRUE if there were processing errors
     * @stable ICU 4.6
     */
    UBool hasErrors() const { return errors!=0; }
    /**
     * Returns a bit set indicating IDNA processing errors.
     * See UIDNA_ERROR_... constants in uidna.h.
     * @return bit set of processing errors
     * @stable ICU 4.6
     */
    uint32_t getErrors() const { return errors; }
    /**
     * Returns TRUE if transitional and nontransitional processing produce different results.
     * This is the case when the input label or domain name contains
     * one or more deviation characters outside a Punycode label (see UTS #46).
     * <ul>
     * <li>With nontransitional processing, such characters are
     * copied to the destination string.
     * <li>With transitional processing, such characters are
     * mapped (sharp s/sigma) or removed (joiner/nonjoiner).
     * </ul>
     * @return TRUE if transitional and nontransitional processing produce different results
     * @stable ICU 4.6
     */
    UBool isTransitionalDifferent() const { return isTransDiff; }

private:
    friend class UTS46;

    IDNAInfo(const IDNAInfo &other);  // no copying
    IDNAInfo &operator=(const IDNAInfo &other);  // no copying

    void reset() {
        errors=labelErrors=0;
        isTransDiff=FALSE;
        isBiDi=FALSE;
        isOkBiDi=TRUE;
    }

    uint32_t errors, labelErrors;
    UBool isTransDiff;
    UBool isBiDi;
    UBool isOkBiDi;
};

U_NAMESPACE_END

#endif  // UCONFIG_NO_IDNA

#endif /* U_SHOW_CPLUSPLUS_API */

#endif  // __IDNA_H__
Commit	Line	Data
f3c0d7a5 A	1	// © 2016 and later: Unicode, Inc. and others.
f3c0d7a5 A	2	// License & terms of use: http://www.unicode.org/copyright.html
729e4ab9 A	3	/*
729e4ab9 A	4	*******************************************************************************
4388f060	5	* Copyright (C) 2010-2012, International Business Machines
729e4ab9 A	6	* Corporation and others. All Rights Reserved.
	7	*******************************************************************************
	8	* file name: idna.h
f3c0d7a5	9	* encoding: UTF-8
729e4ab9 A	10	* tab size: 8 (not used)
	11	* indentation:4
	12	*
	13	* created on: 2010mar05
	14	* created by: Markus W. Scherer
	15	*/
	16
	17	#ifndef __IDNA_H__
	18	#define __IDNA_H__
	19
	20	/**
	21	* \file
	22	* \brief C++ API: Internationalizing Domain Names in Applications (IDNA)
	23	*/
	24
	25	#include "unicode/utypes.h"
	26
340931cb A	27	#if U_SHOW_CPLUSPLUS_API
340931cb A	28
729e4ab9 A	29	#if !UCONFIG_NO_IDNA
	30
	31	#include "unicode/bytestream.h"
	32	#include "unicode/stringpiece.h"
	33	#include "unicode/uidna.h"
	34	#include "unicode/unistr.h"
	35
	36	U_NAMESPACE_BEGIN
	37
51004dcb	38	class IDNAInfo;
729e4ab9 A	39
	40	/**
	41	* Abstract base class for IDNA processing.
	42	* See http://www.unicode.org/reports/tr46/
	43	* and http://www.ietf.org/rfc/rfc3490.txt
	44	*
	45	* The IDNA class is not intended for public subclassing.
	46	*
	47	* This C++ API currently only implements UTS #46.
	48	* The uidna.h C API implements both UTS #46 (functions using UIDNA service object)
	49	* and IDNA2003 (functions that do not use a service object).
4388f060	50	* @stable ICU 4.6
729e4ab9 A	51	*/
	52	class U_COMMON_API IDNA : public UObject {
	53	public:
4388f060 A	54	/**
	55	* Destructor.
	56	* @stable ICU 4.6
	57	*/
	58	~IDNA();
	59
729e4ab9 A	60	/**
	61	* Returns an IDNA instance which implements UTS #46.
	62	* Returns an unmodifiable instance, owned by the caller.
	63	* Cache it for multiple operations, and delete it when done.
	64	* The instance is thread-safe, that is, it can be used concurrently.
	65	*
	66	* UTS #46 defines Unicode IDNA Compatibility Processing,
	67	* updated to the latest version of Unicode and compatible with both
	68	* IDNA2003 and IDNA2008.
	69	*
	70	* The worker functions use transitional processing, including deviation mappings,
	71	* unless UIDNA_NONTRANSITIONAL_TO_ASCII or UIDNA_NONTRANSITIONAL_TO_UNICODE
	72	* is used in which case the deviation characters are passed through without change.
	73	*
	74	* Disallowed characters are mapped to U+FFFD.
	75	*
	76	* For available options see the uidna.h header.
	77	* Operations with the UTS #46 instance do not support the
	78	* UIDNA_ALLOW_UNASSIGNED option.
	79	*
	80	* By default, the UTS #46 implementation allows all ASCII characters (as valid or mapped).
	81	* When the UIDNA_USE_STD3_RULES option is used, ASCII characters other than
	82	* letters, digits, hyphen (LDH) and dot/full stop are disallowed and mapped to U+FFFD.
	83	*
	84	* @param options Bit set to modify the processing and error checking.
	85	* See option bit set values in uidna.h.
	86	* @param errorCode Standard ICU error code. Its input value must
	87	* pass the U_SUCCESS() test, or else the function returns
	88	* immediately. Check for U_FAILURE() on output or use with
	89	* function chaining. (See User Guide for details.)
	90	* @return the UTS #46 IDNA instance, if successful
4388f060	91	* @stable ICU 4.6
729e4ab9 A	92	*/
	93	static IDNA *
	94	createUTS46Instance(uint32_t options, UErrorCode &errorCode);
	95
	96	/**
	97	* Converts a single domain name label into its ASCII form for DNS lookup.
	98	* If any processing step fails, then info.hasErrors() will be TRUE and
	99	* the result might not be an ASCII string.
	100	* The label might be modified according to the types of errors.
	101	* Labels with severe errors will be left in (or turned into) their Unicode form.
	102	*
	103	* The UErrorCode indicates an error only in exceptional cases,
	104	* such as a U_MEMORY_ALLOCATION_ERROR.
	105	*
	106	* @param label Input domain name label
	107	* @param dest Destination string object
	108	* @param info Output container of IDNA processing details.
	109	* @param errorCode Standard ICU error code. Its input value must
	110	* pass the U_SUCCESS() test, or else the function returns
	111	* immediately. Check for U_FAILURE() on output or use with
	112	* function chaining. (See User Guide for details.)
	113	* @return dest
4388f060	114	* @stable ICU 4.6
729e4ab9 A	115	*/
	116	virtual UnicodeString &
	117	labelToASCII(const UnicodeString &label, UnicodeString &dest,
	118	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	119
	120	/**
	121	* Converts a single domain name label into its Unicode form for human-readable display.
	122	* If any processing step fails, then info.hasErrors() will be TRUE.
	123	* The label might be modified according to the types of errors.
	124	*
	125	* The UErrorCode indicates an error only in exceptional cases,
	126	* such as a U_MEMORY_ALLOCATION_ERROR.
	127	*
	128	* @param label Input domain name label
	129	* @param dest Destination string object
	130	* @param info Output container of IDNA processing details.
	131	* @param errorCode Standard ICU error code. Its input value must
	132	* pass the U_SUCCESS() test, or else the function returns
	133	* immediately. Check for U_FAILURE() on output or use with
	134	* function chaining. (See User Guide for details.)
	135	* @return dest
4388f060	136	* @stable ICU 4.6
729e4ab9 A	137	*/
	138	virtual UnicodeString &
	139	labelToUnicode(const UnicodeString &label, UnicodeString &dest,
	140	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	141
	142	/**
	143	* Converts a whole domain name into its ASCII form for DNS lookup.
	144	* If any processing step fails, then info.hasErrors() will be TRUE and
	145	* the result might not be an ASCII string.
	146	* The domain name might be modified according to the types of errors.
	147	* Labels with severe errors will be left in (or turned into) their Unicode form.
	148	*
	149	* The UErrorCode indicates an error only in exceptional cases,
	150	* such as a U_MEMORY_ALLOCATION_ERROR.
	151	*
	152	* @param name Input domain name
	153	* @param dest Destination string object
	154	* @param info Output container of IDNA processing details.
	155	* @param errorCode Standard ICU error code. Its input value must
	156	* pass the U_SUCCESS() test, or else the function returns
	157	* immediately. Check for U_FAILURE() on output or use with
	158	* function chaining. (See User Guide for details.)
	159	* @return dest
4388f060	160	* @stable ICU 4.6
729e4ab9 A	161	*/
	162	virtual UnicodeString &
	163	nameToASCII(const UnicodeString &name, UnicodeString &dest,
	164	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	165
	166	/**
	167	* Converts a whole domain name into its Unicode form for human-readable display.
	168	* If any processing step fails, then info.hasErrors() will be TRUE.
	169	* The domain name might be modified according to the types of errors.
	170	*
	171	* The UErrorCode indicates an error only in exceptional cases,
	172	* such as a U_MEMORY_ALLOCATION_ERROR.
	173	*
	174	* @param name Input domain name
	175	* @param dest Destination string object
	176	* @param info Output container of IDNA processing details.
	177	* @param errorCode Standard ICU error code. Its input value must
	178	* pass the U_SUCCESS() test, or else the function returns
	179	* immediately. Check for U_FAILURE() on output or use with
	180	* function chaining. (See User Guide for details.)
	181	* @return dest
4388f060	182	* @stable ICU 4.6
729e4ab9 A	183	*/
	184	virtual UnicodeString &
	185	nameToUnicode(const UnicodeString &name, UnicodeString &dest,
	186	IDNAInfo &info, UErrorCode &errorCode) const = 0;
	187
	188	// UTF-8 versions of the processing methods ---------------------------- ***
	189
	190	/**
	191	* Converts a single domain name label into its ASCII form for DNS lookup.
	192	* UTF-8 version of labelToASCII(), same behavior.
	193	*
	194	* @param label Input domain name label
	195	* @param dest Destination byte sink; Flush()ed if successful
	196	* @param info Output container of IDNA processing details.
	197	* @param errorCode Standard ICU error code. Its input value must
	198	* pass the U_SUCCESS() test, or else the function returns
	199	* immediately. Check for U_FAILURE() on output or use with
	200	* function chaining. (See User Guide for details.)
	201	* @return dest
4388f060	202	* @stable ICU 4.6
729e4ab9 A	203	*/
729e4ab9 A	204	virtual void
f3c0d7a5	205	labelToASCII_UTF8(StringPiece label, ByteSink &dest,
729e4ab9 A	206	IDNAInfo &info, UErrorCode &errorCode) const;
	207
	208	/**
	209	* Converts a single domain name label into its Unicode form for human-readable display.
	210	* UTF-8 version of labelToUnicode(), same behavior.
	211	*
	212	* @param label Input domain name label
	213	* @param dest Destination byte sink; Flush()ed if successful
	214	* @param info Output container of IDNA processing details.
	215	* @param errorCode Standard ICU error code. Its input value must
	216	* pass the U_SUCCESS() test, or else the function returns
	217	* immediately. Check for U_FAILURE() on output or use with
	218	* function chaining. (See User Guide for details.)
	219	* @return dest
4388f060	220	* @stable ICU 4.6
729e4ab9 A	221	*/
729e4ab9 A	222	virtual void
f3c0d7a5	223	labelToUnicodeUTF8(StringPiece label, ByteSink &dest,
729e4ab9 A	224	IDNAInfo &info, UErrorCode &errorCode) const;
	225
	226	/**
	227	* Converts a whole domain name into its ASCII form for DNS lookup.
	228	* UTF-8 version of nameToASCII(), same behavior.
	229	*
	230	* @param name Input domain name
	231	* @param dest Destination byte sink; Flush()ed if successful
	232	* @param info Output container of IDNA processing details.
	233	* @param errorCode Standard ICU error code. Its input value must
	234	* pass the U_SUCCESS() test, or else the function returns
	235	* immediately. Check for U_FAILURE() on output or use with
	236	* function chaining. (See User Guide for details.)
	237	* @return dest
4388f060	238	* @stable ICU 4.6
729e4ab9 A	239	*/
729e4ab9 A	240	virtual void
f3c0d7a5	241	nameToASCII_UTF8(StringPiece name, ByteSink &dest,
729e4ab9 A	242	IDNAInfo &info, UErrorCode &errorCode) const;
	243
	244	/**
	245	* Converts a whole domain name into its Unicode form for human-readable display.
	246	* UTF-8 version of nameToUnicode(), same behavior.
	247	*
	248	* @param name Input domain name
	249	* @param dest Destination byte sink; Flush()ed if successful
	250	* @param info Output container of IDNA processing details.
	251	* @param errorCode Standard ICU error code. Its input value must
	252	* pass the U_SUCCESS() test, or else the function returns
	253	* immediately. Check for U_FAILURE() on output or use with
	254	* function chaining. (See User Guide for details.)
	255	* @return dest
4388f060	256	* @stable ICU 4.6
729e4ab9 A	257	*/
729e4ab9 A	258	virtual void
f3c0d7a5	259	nameToUnicodeUTF8(StringPiece name, ByteSink &dest,
729e4ab9	260	IDNAInfo &info, UErrorCode &errorCode) const;
729e4ab9 A	261	};
	262
	263	class UTS46;
	264
	265	/**
	266	* Output container for IDNA processing errors.
	267	* The IDNAInfo class is not suitable for subclassing.
4388f060	268	* @stable ICU 4.6
729e4ab9 A	269	*/
	270	class U_COMMON_API IDNAInfo : public UMemory {
	271	public:
	272	/**
	273	* Constructor for stack allocation.
4388f060	274	* @stable ICU 4.6
729e4ab9 A	275	*/
	276	IDNAInfo() : errors(0), labelErrors(0), isTransDiff(FALSE), isBiDi(FALSE), isOkBiDi(TRUE) {}
	277	/**
	278	* Were there IDNA processing errors?
	279	* @return TRUE if there were processing errors
4388f060	280	* @stable ICU 4.6
729e4ab9 A	281	*/
	282	UBool hasErrors() const { return errors!=0; }
	283	/**
	284	* Returns a bit set indicating IDNA processing errors.
	285	* See UIDNA_ERROR_... constants in uidna.h.
	286	* @return bit set of processing errors
4388f060	287	* @stable ICU 4.6
729e4ab9 A	288	*/
	289	uint32_t getErrors() const { return errors; }
	290	/**
	291	* Returns TRUE if transitional and nontransitional processing produce different results.
	292	* This is the case when the input label or domain name contains
	293	* one or more deviation characters outside a Punycode label (see UTS #46).
	294	* <ul>
	295	* <li>With nontransitional processing, such characters are
	296	* copied to the destination string.
	297	* <li>With transitional processing, such characters are
	298	* mapped (sharp s/sigma) or removed (joiner/nonjoiner).
	299	* </ul>
	300	* @return TRUE if transitional and nontransitional processing produce different results
4388f060	301	* @stable ICU 4.6
729e4ab9 A	302	*/
	303	UBool isTransitionalDifferent() const { return isTransDiff; }
	304
	305	private:
	306	friend class UTS46;
	307
	308	IDNAInfo(const IDNAInfo &other); // no copying
	309	IDNAInfo &operator=(const IDNAInfo &other); // no copying
	310
	311	void reset() {
	312	errors=labelErrors=0;
	313	isTransDiff=FALSE;
	314	isBiDi=FALSE;
	315	isOkBiDi=TRUE;
	316	}
	317
	318	uint32_t errors, labelErrors;
	319	UBool isTransDiff;
	320	UBool isBiDi;
	321	UBool isOkBiDi;
	322	};
	323
	324	U_NAMESPACE_END
	325
	326	#endif // UCONFIG_NO_IDNA
340931cb A	327
	328	#endif /* U_SHOW_CPLUSPLUS_API */
	329
729e4ab9	330	#endif // __IDNA_H__